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Date:      Tue, 18 Mar 2003 11:10:32 +0100
From:      Olivier Dony <olivier@blacktrap.net>
To:        Jan Blomqvist <jan.blomqvist@teligent.se>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: Resource temporarily unavailable
Message-ID:  <20030318101032.GA50668@vega.blacktrap.net>
In-Reply-To: <LJEIJHIOGAPJEBMEHCEGIEGMCKAA.jan.blomqvist@teligent.se>
References:  <LJEIJHIOGAPJEBMEHCEGIEGMCKAA.jan.blomqvist@teligent.se>

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On Tue, Mar 18, 2003 at 09:03:32AM +0100, Jan Blomqvist wrote:
> Hi!
> I have 800mhz 500mb node with freebsd 4.1, I often get this "Resource
> temporarily unavailable"
> I have problem to find out what kind of Resource its problem with, when I do
> top command everything looks ok lots of memory free and like 80% idle, and
> we have done some changes in the kernel "options         MAXMEM=(512*1024)
> options         SHMMNI=64"and also increased maxusers to 128.This is a
> example of error message:

Hi,

Just a couple of wild guesses :
- I suppose you have no particular maxprocess limit or whatever for your login
  class in /etc/login.conf? You can always have a look at login.conf(5)

- What does 'ps auxww' look like when this happens? Anything surprising there?
  'top' only shows the first so much heavier processes, so you might not see 
  everything.

- On my box here I just ran a little test and with all limits set to
  'unlimited' in login.conf I can trigger this error with a recursive shell
  script calling itself. It happens when about 475 processes have been
  spawned, and then they all die eventually and everything returns to normal.

Hope this helps a bit, but people on the list have probably more information
and also more relevant about this matter... good luck :-)

Olivier

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